NE204B 2 in x 2 in Absorptive ND Filter; Optical Density 0.4

The NE204B is a Neutral Density Filter, measuring 2 inches by 2 inches, sourced from the reputable optical components manufacturer, Thorlabs. This filter is designed to reduce the intensity of incident light without altering its color composition, making it an essential tool for various optical applications.

The filter is made from N-BK7 Schott, a high-quality borosilicate glass known for its excellent optical properties. It boasts a thickness of 0.7 inches, providing robustness and stability in its operation. The rectangular shape of the filter allows for versatile integration into various optical systems.

The NE204B features a front and back coating of tho ne04a, an advanced absorptive coating technology developed by Thorlabs. This coating provides an optical density of 0.4, reducing the light intensity by a factor of 2.51. This makes it suitable for applications where moderate light reduction is required.

The filter's geometry is designed in a Thin Lens shape, which not only contributes to its robustness but also allows for easy integration into existing optical systems. The filter's current status is in stock, ensuring quick delivery upon order.

For more detailed information, including datasheets and technical drawings, please refer to the provided weblink: https://www.thorlabs.com/thorproduct.cfm?partnumber=NE204B.